CN105567246A - Remediation agent for heavy metal contaminated soil of mining area and preparation method of remediation agent - Google Patents
Remediation agent for heavy metal contaminated soil of mining area and preparation method of remediation agent Download PDFInfo
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- CN105567246A CN105567246A CN201610068217.5A CN201610068217A CN105567246A CN 105567246 A CN105567246 A CN 105567246A CN 201610068217 A CN201610068217 A CN 201610068217A CN 105567246 A CN105567246 A CN 105567246A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2101/00—Agricultural use
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a remediation agent for heavy metal contaminated soil of a mining area and a preparation method of the remediation agent. The remediation agent is prepared from ceramic powder, a biomass carbon material, a phosphate-containing material, silicon micropowder, organic fertilizer and calcium oxide and/or calcium hydroxide, wherein the ceramic powder is prepared from discarded ceramic filter elements of water purifiers through the steps of acid soaking, flushing and grinding, and the biomass carbon material is prepared from wood residues, straw and dry branches and fallen leaves through anoxic high-temperature burning. The powder prepared from the ceramic filter elements is large in specific surface area, is provided with functional groups on the surface, has high adsorptivity, caking property, suspension property and cation exchange capacity and has a good binding effect on heavy metal cations in the soil; the biomass carbon material can effectively bind heavy metal and achieve complexing of the heavy metal on the surface groups and inside pore channels; the organic fertilizer can provide nutritional elements and can further achieve complexing of the heavy metal elements; the remediation agent is low in cost and can stabilize and passivate the heavy metal and can further supplement the fertility of the soil.
Description
Technical field
The present invention relates to remediation of heavy metal-contaminated soil field, particularly relate to renovation agent of a kind of heavy metal polluted soil in mine field and preparation method thereof.
Background technology
China is the third-largest mining powers in the world, and the exploitation of Mineral resources facilitates economic prosperity, social progress and human civilization.But owing to not setting up and implementing the corresponding structure of the law of mine ecological environment qrotection and improvement, exploitation of mineral resources and environment protection are separated, and economic benefit is only said by bargh, ignore ecotope, thereby produce a large amount of Environmental Problems in Mines.One of wherein the most serious problem causes heavy metal pollution of soil.There is numerous soil pollution phenomenon in the ground such as Hunan, Guangxi; By 2008 the end of the year China have large medium-size mine more than 9000, small mine 260,000, because of mining activity take, the land area destroyed reaches 332.5 ten thousand hectares, the aggregate value method of weighting storage of solid waste is 353.3 hundred million tons, and then cause soil erosion, vegetation and landscape destruction, the loss of biodiversity, finally cause the unbalance and induced environment geologic hazard of ecotope.Current China, by nearly 20,000,000 hectares of the cultivated area of the heavy metal contaminations such as cadmium, arsenic, chromium, lead, accounts for 1/5th of total cultivated area, and wherein heavy metal all derives from the diffusion of mine and mining activity greatly.Therefore, for mine pollution environmental threat serious at present, in the urgent need to finding restorative procedure effectively.
Mine environmental remediation needs rich technical support and source of fund, and mine environmental remediation relates to every aspect, and from geology, chemical industry, geotechnique is to multiple subject and technology such as agriculture, woods, environmental protection.It is a systems engineering that mining area ecological environment recovers, and needs a large amount of inputs, and many barghs burden is heavy, economic benefit is bad, mining area ecological environment is resumed work difficult.Deep ploughing, casting method, thermal desorption method, soil moved in improve the original method, heat treating process, electrochemical process, soil washing and solidification and stabilization method etc. have successively been explored with regard to heavy metal pollution of soil reparation in countries in the world.In view of aforesaid method has certain limitation, desirable reclamation activities could not be become, also non-large scale application.If soil moved in improve the original method every mu of soil is up to 150,000 kg, traffic capacity is very large, and cost is too high, and mishandlingly can cause secondary pollution, considers all can not become main flow recovery technique from economy and method angle.Soil stabilization recovery technique has that the time is short, cost is low, workable, the advantages such as multiple pollutant can be processed simultaneously, be used widely in the U.S., Japan and the country such as European.Although Stabilization Remediation Technology is started late at home, but from the market of current soil remediation Treatment process, stabilization technology is expected to the main force becoming heavy metal pollution of soil recovery technique field, but it is very high for the renovation agent cost of heavy metal polluted soil in mine field at present, too high for large-area contaminated soil processing cost, be difficult to apply, and after process still there is the problem of famine nutrition or nutritional imbalance in mining soil, plant is difficult to growth and survives, and remains a slice and lie waste after process.
Summary of the invention
Technical problem to be solved by this invention is to provide renovation agent of a kind of heavy metal polluted soil in mine field and preparation method thereof.
The technical solution used in the present invention is:
A kind of renovation agent of heavy metal polluted soil in mine field, comprise the ceramic powder of 55.0-80.0 mass parts, the biomass carbon material of 4-11 mass parts, the phosphate-containing material of 2.0-9.5 mass parts, the silicon powder of 0.5-9.0 mass parts, the fertilizer of 2-13 mass parts, and the calcium oxide of 0.5-9.0 mass parts and/or calcium hydroxide, wherein, described ceramic powder is the ceramic powder obtained after steeping acid, flushing, grinding by the Ceramic Filter Coundles for Water Purifier of discarding, and described biomass carbon material is the material obtained through anoxic high-temperature firing by wood residues, stalk, dry branches and fallen leaves.
Preferably, the renovation agent of described heavy metal polluted soil in mine field comprises ceramic powder, the biomass carbon material of 8.0 mass parts, the phosphate-containing material of 6.0 mass parts, the silicon powder of 5.0 mass parts, the fertilizer of 10.0 mass parts of 71.0 mass parts, and the calcium oxide of 5.0 mass parts and/or calcium hydroxide.
Preferably, described ceramic powder particle diameter is≤150 microns.
Preferably, described fertilizer is by leguminous plants, the stalk mixture fertilizer that obtains of compost after crushed.
Further preferably, described leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda.
Preferably, described phosphate-containing material is ground by least one in Rock Phosphate (72Min BPL), phosphate-containing ash content, phosphate-containing mud or phosphate-containing waste residue to obtain.
Present invention also offers a kind of preparation method of renovation agent of heavy metal polluted soil in mine field as above, comprise the following steps:
S1: prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, takes the ceramic powder of 55.0-80.0 mass parts;
S2: prepare biomass carbon material: get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 4-11 mass parts;
S3: take the phosphate-containing material of 2.0-9.5 mass parts, the silicon powder of 0.5-9.0 mass parts, the fertilizer of 2-13 mass parts again, and the calcium oxide of 0.5-9.0 mass parts and/or calcium hydroxide, the described ceramic powder obtained with S1 and S2 gained biomass carbon material are uniformly mixed, and prepare the renovation agent of heavy metal polluted soil in mine field.
Preferably, described ceramic powder particle diameter is≤150 microns.
Preferably, described fertilizer is by leguminous plants, the stalk mixture fertilizer that obtains of compost after crushed.
Preferably, described phosphate-containing material is ground by least one in Rock Phosphate (72Min BPL), phosphate-containing ash content, phosphate-containing mud or phosphate-containing waste residue to obtain.
The invention has the beneficial effects as follows: the invention provides renovation agent of a kind of heavy metal polluted soil in mine field and preparation method thereof, described renovation agent comprises the ceramic powder of 55.0-80.0 mass parts, the biomass carbon material of 4-11 mass parts, the phosphate-containing material of 2.0-9.5 mass parts, the silicon powder of 0.5-9.0 mass parts, the fertilizer of 2-13 mass parts, and the calcium oxide of 0.5-9.0 mass parts and/or calcium hydroxide, wherein, described ceramic powder is through steeping acid by the Ceramic Filter Coundles for Water Purifier of discarding, rinse, the ceramic powder obtained after grinding, described biomass carbon material is by wood residues, stalk, the material that dry branches and fallen leaves obtains through anoxic high-temperature firing.Household water filter industry emerges in recent years, ceramic element product increases sharply, after ceramic element uses for some time, after life termination, the regeneration of ceramic element is mainly ground into powder for the production of adobe material, Antique Imitation Tiles, ceramicite cement etc., nobody finds to use it for heavy-metal contaminated soil reparation, steeped acid, rinse, the Specific Surface Area Measurement obtained after grinding is large, and ceramic powder surface has Al-OH, Si-OH, the surface functional groups such as-COOH, there is very strong adsorptivity, cohesiveness, suspension and cation exchange capacity (CEC), to the Pb in soil
2+, Zn
2+good constraint effect is had Deng heavy metal cation, biomass carbon material is obtained by anoxic high-temperature firings such as wood residues, stalk, dry branches and fallen leaves, has larger specific surface area and higher surface energy, effectively can fetter heavy metal, be complexed to by heavy metal in surface group and duct, phosphoric acid salt can form indissoluble with lead and precipitate, calcium oxide or calcium hydroxide can not only regulate the pH of soil, and can form the good hydroxyapatite of heavy metal adsorptive power etc. with phosphoric acid salt, can consolidate and strengthen total metal in passivation soil, can also provide the source of the phosphorus needed for growth for plant, fertilizer is with after leguminous plants and stalk mixing, through the fertilizer of pulverizing, compost, stalk is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter etc., be that one has multiduty reproducible Biological resources, nutritive element can be provided for plant-growth, again can complexing heavy metal element, play the effect of stabilization, and leguminous plants because with root nodule bacterium symbiosis, have good nitrogen fixation effect, organic nitrogen content is higher, above component is raw material with low cost, especially ceramic powder is that the discarded ceramic element reclaimed obtains, not only cost is low but also achieve resource circulation utilization, after all components is mixed, for the treatment of heavy metal polluted soil in mine field, the heavy metal in passivation soil can not only be stablized, the fertility of soil can also be supplemented, make the soil after processing can be used in planting plants, avoid soil depletion.
Embodiment
embodiment 1:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 55 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 4 mass parts; Take the Rock Phosphate (72Min BPL) of 2.0 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 0.5 mass parts, the calcium oxide of 0.5 mass parts and the fertilizer of 2 mass parts, and prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
embodiment 2:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 80.0 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 11 mass parts; Take the Rock Phosphate (72Min BPL) of 9.5 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 9 mass parts, the calcium oxide of 9 mass parts and the fertilizer of 13 mass parts, and prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
embodiment 3:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 71.0 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 8 mass parts; Take the Rock Phosphate (72Min BPL) of 6 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 5 mass parts, the calcium oxide of 5 mass parts and the fertilizer of 10 mass parts, and prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
embodiment 4:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 71.0 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 8 mass parts; Take the phosphate-containing ash content of 6 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 5 mass parts, the calcium oxide of 5 mass parts and the fertilizer of 10 mass parts, and prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
embodiment 5:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 71.0 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 8 mass parts; Take the phosphate-containing waste residue of 6 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the fertilizer of the silicon powder of 5 mass parts, the calcium oxide of 2.5 mass parts, the calcium hydroxide of 2.5 mass parts and 10 mass parts, with prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
embodiment 6:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 71.0 mass parts; Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 8 mass parts; Take the phosphate-containing mud of 5 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained; Take the silicon powder of 5 mass parts, the calcium hydroxide of 5 mass parts and the fertilizer of 10 mass parts, and prepare described ceramic powder and the biomass carbon material for preparing is uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
comparative example 1:
Get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 79 mass parts; Take the Rock Phosphate (72Min BPL) of 6 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 5 mass parts, the calcium oxide of 5 mass parts and the fertilizer of 10 mass parts, be uniformly mixed with the biomass carbon material prepared, prepare the renovation agent of heavy metal polluted soil in mine field.
comparative example 2:
Prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, and cross 100 mesh sieves, particle diameter≤150 micron of described ceramic powder, take the ceramic powder of 79.0 mass parts; Take the Rock Phosphate (72Min BPL) of 6 mass parts again, grinding, cross 60 mesh sieves; Get leguminous plants, stalk mixture, pulverize, compost, the fertilizer obtained, wherein said leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda; Take the silicon powder of 5 mass parts, the calcium oxide of 5 mass parts and the fertilizer of 10 mass parts, and prepare described ceramic powder and be uniformly mixed, prepare the renovation agent of heavy metal polluted soil in mine field.
The renovation agent that Example 1-6 and comparative example 1,2 prepare carries out reparation contrast experiment, designs 8 process altogether.Layout and gather the plumbous zinc tailings in Chenzhou, Hunan Province mining area, measure each total metals of tailings, available state amount and Leaching; Get 8 beakers, No. 1-8, numbering, take 500g tailings sample (air-dry, cross 10 mesh sieves), add respectively in 1-8 beaker, then respectively to the renovation agent adding 25g embodiment 1-6 and comparative example 1,2 in 1-8 beaker and prepare, control water ratio and be about 40%, stir; Room temperature maintenance is after 5 days, and sampling natural air drying, measures its Leaching by HJ/T299-2007.Wherein the Leaching reduced rate of Pb, Zn, Cu, Cd is as shown in table 1.
Table 1 four heavy metal species Leaching reduced rate
| Process | Pb Leaching reduced rate | Zn Leaching reduced rate | Cu Leaching reduced rate | Cd Leaching reduced rate |
| Embodiment 1 | 69.45% | 58.70% | 51.85% | 49.79% |
| Embodiment 2 | 73.55% | 75.41% | 79.00% | 89.68% |
| Embodiment 3 | 87.52% | 90.00% | 91.94% | 86.56% |
| Embodiment 4 | 54.65% | 48.68% | 63.81% | 62.55% |
| Embodiment 5 | 40.83% | 30.06% | 52.03% | 70.98% |
| Embodiment 6 | 51.71% | 65.57% | 73.52% | 60.58% |
| Comparative example 1 | 47.45% | 74.78% | 68.47% | 75.15% |
| Comparative example 2 | 68.57% | 76.19% | 81.90% | 85.94% |
The renovation agent prepared by embodiment 1-3 can be found out the reparation of tailings contrast, and the too much or very few effect that all can affect renovation agent heavy metal stabilization of ceramic powder, its optimum formula ratio is the renovation agent of embodiment 3.The reparation contrast of the renovation agent prepared by Processing Example 3-6 to tailings can be found out, different phosphorated materials is larger on the impact of its Leaching, wherein the Leaching reduced rate size order of Pb is Rock Phosphate (72Min BPL) > ash content > mud > waste residue, the Leaching reduced rate size order of Zn is Rock Phosphate (72Min BPL) > mud > ash content > waste residue, the Leaching reduced rate size order of Cu is Rock Phosphate (72Min BPL) > mud > ash content > waste residue, the Leaching reduced rate size order of Cd is Rock Phosphate (72Min BPL) > waste residue > ash content > mud, after Rock Phosphate (72Min BPL) after this explanation ball milling and ceramic powder etc. mix, the effect that heavy metal is stable is better.The reparation contrast of the renovation agent prepared by embodiment 3, comparative example 1 and comparative example 2 to tailings can be found out, biomass charcoal and the rear heavy metal stabilization of ceramic powder mixing create synergy, comparative example 1 or 2 four heavy metal species Leaching reduced rate is all below 85.94%, and embodiment 3 four heavy metal species Leaching reduced rate is all more than 86.56%, be up to 91.94%.In sum, heavy metal-polluted soil stabilization agent optimum proportioning of the present invention is embodiment 3, and it can fetter effectively to the zinc in soil, lead, cadmium, copper four heavy metal species, applied widely.
Claims (10)
1. the renovation agent of a heavy metal polluted soil in mine field, it is characterized in that, comprise the ceramic powder of 55.0-80.0 mass parts, the biomass carbon material of 4-11 mass parts, the phosphate-containing material of 2.0-9.5 mass parts, the silicon powder of 0.5-9.0 mass parts, the fertilizer of 2-13 mass parts, and the calcium oxide of 0.5-9.0 mass parts and/or calcium hydroxide, wherein, described ceramic powder is through steeping acid by the Ceramic Filter Coundles for Water Purifier of discarding, rinse, the ceramic powder obtained after grinding, described biomass carbon material is by wood residues, stalk, the material that dry branches and fallen leaves obtains through anoxic high-temperature firing.
2. the renovation agent of heavy metal polluted soil in mine field according to claim 1, it is characterized in that, the renovation agent of described heavy metal polluted soil in mine field comprises ceramic powder, the biomass carbon material of 8.0 mass parts, the phosphate-containing material of 6.0 mass parts, the silicon powder of 5.0 mass parts, the fertilizer of 10.0 mass parts of 71.0 mass parts, and the calcium oxide of 5.0 mass parts and/or calcium hydroxide.
3. the renovation agent of heavy metal polluted soil in mine field according to claim 1 and 2, is characterized in that, described ceramic powder particle diameter≤150 micron.
4. the renovation agent of the heavy metal polluted soil in mine field according to any one of claim 1 or 2, is characterized in that, described fertilizer is by leguminous plants, the stalk mixture fertilizer that obtains of compost after crushed.
5. the renovation agent of heavy metal polluted soil in mine field according to claim 4, is characterized in that, described leguminous plants is at least one in butch clover, safflower locust tree, Lespedeza floribunda.
6. the renovation agent of the heavy metal polluted soil in mine field according to any one of claim 1 or 2, is characterized in that, described phosphate-containing material is ground by least one in Rock Phosphate (72Min BPL), phosphate-containing ash content, phosphate-containing mud or phosphate-containing waste residue to obtain.
7. the preparation method of the renovation agent of the heavy metal polluted soil in mine field described in any one of claim 1-6, is characterized in that, comprises the following steps:
S1: prepare ceramic powder: get discarded Ceramic Filter Coundles for Water Purifier, bubble acid, rinses, and grinding, sieves, dry, obtains ceramic powder, takes the ceramic powder of 55.0-80.0 mass parts;
S2: prepare biomass carbon material: get wood residues, stalk, dry branches and fallen leaves, anoxic high-temperature firing obtains biomass carbon material, takes the biomass carbon material of 4-11 mass parts;
S3: take the phosphate-containing material of 2.0-9.5 mass parts, the silicon powder of 0.5-9.0 mass parts, the fertilizer of 2-13 mass parts again, and the calcium oxide of 0.5-9.0 mass parts and/or calcium hydroxide, the described ceramic powder obtained with S1 and S2 gained biomass carbon material are uniformly mixed, and prepare the renovation agent of heavy metal polluted soil in mine field.
8. the preparation method of the renovation agent of heavy metal polluted soil in mine field according to claim 7, is characterized in that, described ceramic powder particle diameter≤150 micron.
9. the preparation method of the renovation agent of heavy metal polluted soil in mine field according to claim 7, is characterized in that, described fertilizer is by leguminous plants, the stalk mixture fertilizer that obtains of compost after crushed.
10. the preparation method of the renovation agent of heavy metal polluted soil in mine field according to claim 7, it is characterized in that, described phosphate-containing material is ground by least one in Rock Phosphate (72Min BPL), phosphate-containing ash content, phosphate-containing mud or phosphate-containing waste residue to obtain.
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| CN109054858A (en) * | 2018-09-17 | 2018-12-21 | 中国地质大学（北京） | A kind of configuration and application method of dilute scattered non-ferrous metal tailings modifying agent |
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| CN109126734A (en) * | 2018-10-11 | 2019-01-04 | 成都其其小数科技有限公司 | A kind of high efficiency, low cost adsorbent and preparation method for heavy metal containing wastewater treatment |
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